Created attachment 135368 [details] Broken top corner See attached screenshot. Bisected to https://invent.kde.org/frameworks/plasma-framework/-/commit/a5aca682692315782d4deb93364471ecc0f4209d Reverting it fixes the issue completely.
A possibly relevant merge request was started @ https://invent.kde.org/frameworks/plasma-framework/-/merge_requests/196
Git commit 353bb1578b4fc1b39cc819e3cbda9f606589138c by Nate Graham, on behalf of Jan Blackquill. Committed on 02/02/2021 at 21:07. Pushed by ngraham into branch 'master'. widgets>lineedit.svg: fix pixel misalignment woes This fixes all visible pixel misalignment and different-sizes-causing-weird-behaviour issues with the line edit widget. M +55 -100 src/desktoptheme/breeze/widgets/lineedit.svg https://invent.kde.org/frameworks/plasma-framework/commit/353bb1578b4fc1b39cc819e3cbda9f606589138c